Minimum Bottom Line

Jinhua Road, Yanjing City.
This is the road Harbinger Campbe must take to go home.
This is a road that directly intersects with Guanghua Road, where Harbinger Campbe lives in the Bihuayuan community.
Every day, whether Harbinger Campbe was going to work or coming home from work, he had to take this road. When he was going to work, he had to turn to this road when he came out of Guanghua Road at the entrance of the community. When he was coming home from work, he had to turn from this...